Light unit for a fireman&#39;s helmet



FIG. 1 is a perspective view of a light unit for a fireman's helmet showing my new design;

FIG. 2 is an enlarged perspective view thereof;

FIG. 3 is a top view thereof, the bottom view being a mirror image;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines in FIG. 1 show a fireman's helmet and form no part of the claimed design. 

The ornamental design for a light unit for a fireman's helmet, as shown and described. 